asb added a comment.

> This is still some sort of very early draft and I'm not sure what the rules 
> are in LLVM land for merging that sort of code. It's a fast track extension 
> so it should be done soon

The policy we ended up with is that support for not-yet-ratified extensions can 
be merged, but they're made to stick out like a sore thumb by calling the 
feature -experimental-foo and requiring `-menable-experimental-extensions` in 
clang. Given the simplicity of zawrs there's substantially less scope for 
drastic changes, but I think conforming to that is probably the best patch 
forwards. You should be able to see an example by looking at one of the stalled 
bitmanip extensions, e.g. experimental-zbp.


CHANGES SINCE LAST ACTION
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https://reviews.llvm.org/D128235

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